Home / 19,880.24-27,435.11-10,928.12

Finding the Fourth Proportional to 19,880.24, 27,435.11 and 10,928.12

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Solution

The fourth proportional to 19,880.24, 27,435.11 and 10,928.12 is: 15,081.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.24 : 27,435.11 = 10,928.12 : x
  2. Step 2: Convert to fraction form
    19,880.24/27,435.11 = 10,928.12/x
  3. Step 3: Cross multiply
    19,880.24x = 27,435.11 × 10,928.12
  4. Step 4: Simplify right side
    19,880.24x = 299,813,982.48
  5. Step 5: Solve for x
    x = 299,813,982.48/19,880.24
  6. Step 6: Final answer
    x = 15,081.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.